Science, asked by HaramiWorld034, 2 months ago

What Is Force.

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Answers

Answered by llMsFlawlessll
141

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\bf\pink{Force :}

  • A force is an effort that changes the state of an object at rest or at motion.

  • It can change an object's direction and velocity.

  • Force can also change the shape of an object.

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\boxed{\text{More to know :}}

\sf{\underline{\overline{\purple{ Types  \: of  \: Force :}}}}

Normal force :

  • The normal force is the force that surfaces exert to prevent solid objects from passing through each other.

Applied force :

  • An applied force is a force that is applied to an object by a person or another object.

Frictional force :

  • Frictional force refers to the force generated by two surfaces that contacts and slide against each other.

Tension force :

  • The tension force is defined as the force that is transmitted through a rope, string or wire when pulled by forces acting from opposite sides.

Spring force :

  • The spring force is the force exerted by a compressed or stretched spring upon any object that is attached to it.

Resisting force :

  • Resistive force is a force, or the vector sum of numerous forces, whose direction is opposite to the motion of a body.
Answered by OoINTROVERToO
0

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Force is push or pull acting on a body which tends to change its state of rest or of motion. It is denoted by "F". It has a magnitude and a direction.

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 \large \red{\bold{Formula \ for \ Force \:  :  - } }

 \huge\underline{\boxed{\textrm{F = {\texttt{ma}}}}}

Here,

" m " = Mass of the body

" a " = Acceleration

" F " = Force

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Derivation of Force [ F = ma ] using Newton's law of motion.

\small{\bold{Newton's\:Second\:Law \ states \ that \ :-}}\\ \tiny \:  \tt \: The \:  rate  \: of change \:  of  \: momentum  \: of \:  an \:  object  \\  \tiny \tt  depends \:  upon  \: the \:  direction \:  and \:  magnitude \:  of \:  applied  \: force.

 \blue{\large{\bf{F \propto \cfrac{dp}{dt}}} }

 \blue{\large{ \ \bf{F \propto \cfrac{d(mv - mu)}{dt}}} }

 \blue{\large{ \ \bf{F = k.m \cfrac{d(v - u)}{dt}}} }

 \blue{\large{\ \bf{F = k.ma}}  \quad \quad \:  \:  \:  \tt{[If, k = 1]}}

 \blue{\large{\leadsto \ \underline{\boxed{\bf{ \pmb{F = ma}}}}}}

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Unit of Force :-

  • SI unit of force is Newton(N).
  • C.G.S (centimetre gram second) unit of force is Dyne.

Effects of force -

  • Force can change the direction of a moving object.
  • Force can change the shape and size of an object.
  • Force can change the speed of a moving object.
  • Force can change a body′s state of motion or rest.

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Force is classified into two category:-

Contact Force

  • Muscular Force
  • Frictional Force
  • Normal Force
  • Applied force
  • Tension Force
  • Spring Force
  • Air resisting Force

Non−contact Force

  • Gravitational Force
  • Magnetic Force
  • Electrostatic Force
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